RCE in Nlnetlabs Unbound
CVE-2019-18934
Unbound 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with `--enable-ipsecmod` support, and ipsecmod is enabled and used in the configuration.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.032 (86.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Nlnetlabs Unbound
- Fedoraproject Fedora — versions 31
- Opensuse Leap — versions 15.1, 15.2
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit, Mailing List, Third Party Advisory)
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Release Notes)
- cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2019-18934?
- CVE-2019-18934 is a high-severity vulnerability in Nlnetlabs Unbound, classified under OS Command Injection. CVSS score: 7.3/10. Published 2019-11-19.
- How severe is CVE-2019-18934?
- High severity. CVSS v3 base score is 7.3 out of 10.